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Finite size dependence of scaling functions of the three-dimensional O(4) model in an external field
J. Engels, F. Karsch
We calculate universal finite size scaling functions for the order parameter and the longitudinal susceptibility of the three-dimensional O(4) model. The phase transition of this m…
Longitudinal and transverse spectral functions in the three-dimensional O(4) model
J. Engels, O. Vogt
We have performed a high statistics simulation of the O(4) model on a three-dimensional lattice of linear extension L=120 for small external fields H. Using the maximum entropy met…
Scaling and Goldstone effects in a QCD with two flavours of adjoint quarks
J. Engels, S. Holtmann, T. Schulze
We study QCD with two Dirac fermions in the adjoint representation at finite temperature by Monte Carlo simulations.In such a theory the deconfinement and chiral phase transitions…
External field dependence of the correlation lengths in the three-dimensional O(4) model
J. Engels, L. Fromme, M. Seniuch
We investigate numerically the transverse and longitudinal correlation lengths of the three-dimensional O(4) model as a function of the external field H. In the low-temperature pha…
Correlation lengths and scaling functions in the three-dimensional O(4) model
J. Engels, L. Fromme, M. Seniuch
We investigate numerically the transverse and longitudinal correlation lengths of the three-dimensional O(4) model as a function of the external field H. From our data we calculate…
Comparison of finite-size-scaling functions for 3d O(N) spin models to QCD
T. Schulze, J. Engels, S. Holtmann +1
We calculate numerically universal finite-size-scaling functions of the magnetization for the three-dimensional O(4) and O(2) spin models. The approach of these functions to the in…